Patent attributes
An auto focusing camera includes a stator (120) and a rotor (130) rotatably disposed in the stator. The stator includes a stator core (122) and at least a coil (125) wound around the stator core. The rotor has an inner thread (136). A lens unit (20) is linearly movably received in the rotor, comprising a lens barrel (14) and a lens (15) mounted in the lens barrel. The lens barrel has an outer thread (146) threadedly engaging with the inner thread of the rotor, and an internal thread (148) formed on an inner surface thereof. The lens has an external thread (158) threadedly engaging with the internal thread of the barrel. When the rotor rotates, the lens unit has a telescopic movement relative to the rotor. By rotating the lens, a relative position between the lens and the lens barrel is adjustable.
